prefetch-bench-new AMD Athlon II X2 245 testing with a ASUS M4A78 (2301 BIOS) and ECS AMD Radeon HD 7450 on Debian testing via the Phoronix Test Suite. with prefetch 2: Processor: AMD Athlon II X2 245 @ 2.90GHz (2 Cores), Motherboard: ASUS M4A78 (2301 BIOS), Chipset: AMD RX780/RX790 + SB7x0/SB8x0/SB9x0, Memory: 4096MB, Disk: 120GB Samsung SSD 850 + 2 x 2000GB Seagate ST2000DL003-9VT1, Graphics: ECS AMD Radeon HD 7450, Audio: Realtek ALC887, Network: Realtek RTL8111/8168/8411 OS: Debian testing, Kernel: 5.6.0-proper-rmw (x86_64), Compiler: GCC 9.3.0, File-System: ext4 without prefetch: Processor: AMD Athlon II X2 245 @ 2.90GHz (2 Cores), Motherboard: ASUS M4A78 (2301 BIOS), Chipset: AMD RX780/RX790 + SB7x0/SB8x0/SB9x0, Memory: 4096MB, Disk: 120GB Samsung SSD 850 + 2 x 2000GB Seagate ST2000DL003-9VT1, Graphics: ECS AMD Radeon HD 7450, Audio: Realtek ALC887, Network: Realtek RTL8111/8168/8411 OS: Debian testing, Kernel: 5.6.0-proper-rmw (x86_64), Compiler: GCC 9.3.0, File-System: ext4 with prefetch 4: Processor: AMD Athlon II X2 245 @ 2.90GHz (2 Cores), Motherboard: ASUS M4A78 (2301 BIOS), Chipset: AMD RX780/RX790 + SB7x0/SB8x0/SB9x0, Memory: 4096MB, Disk: 120GB Samsung SSD 850 + 2 x 2000GB Seagate ST2000DL003-9VT1, Graphics: ECS AMD Radeon HD 7450, Audio: Realtek ALC887, Network: Realtek RTL8111/8168/8411 OS: Debian testing, Kernel: 5.6.0-proper-rmw (x86_64), Compiler: GCC 9.3.0, File-System: ext4 new with prefetch 4: Processor: AMD Athlon II X2 245 @ 2.90GHz (2 Cores), Motherboard: ASUS M4A78 (2301 BIOS), Chipset: AMD RX780/RX790 + SB7x0/SB8x0/SB9x0, Memory: 4096MB, Disk: 120GB Samsung SSD 850 + 2 x 2000GB Seagate ST2000DL003-9VT1, Graphics: ECS AMD Radeon HD 7450, Audio: Realtek ALC887, Network: Realtek RTL8111/8168/8411 OS: Debian testing, Kernel: 5.6.0-proper-rmw (x86_64), Compiler: GCC 9.3.0, File-System: ext4 new2 with prefetch 4: Processor: AMD Athlon II X2 245 @ 2.90GHz (2 Cores), Motherboard: ASUS M4A78 (2301 BIOS), Chipset: AMD RX780/RX790 + SB7x0/SB8x0/SB9x0, Memory: 4096MB, Disk: 120GB Samsung SSD 850 + 2 x 2000GB Seagate ST2000DL003-9VT1, Graphics: ECS AMD Radeon HD 7450, Audio: Realtek ALC887, Network: Realtek RTL8111/8168/8411 OS: Debian testing, Kernel: 5.6.0-proper-rmw (x86_64), Compiler: GCC 9.3.0, File-System: ext4 new2 with prefetch 2: Processor: AMD Athlon II X2 245 @ 2.90GHz (2 Cores), Motherboard: ASUS M4A78 (2301 BIOS), Chipset: AMD RX780/RX790 + SB7x0/SB8x0/SB9x0, Memory: 4096MB, Disk: 120GB Samsung SSD 850 + 2 x 2000GB Seagate ST2000DL003-9VT1, Graphics: ECS AMD Radeon HD 7450, Audio: Realtek ALC887, Network: Realtek RTL8111/8168/8411 OS: Debian testing, Kernel: 5.6.0-proper-rmw (x86_64), Compiler: GCC 9.3.0, File-System: ext4 new2 without prefetch: Processor: AMD Athlon II X2 245 @ 2.90GHz (2 Cores), Motherboard: ASUS M4A78 (2301 BIOS), Chipset: AMD RX780/RX790 + SB7x0/SB8x0/SB9x0, Memory: 4096MB, Disk: 120GB Samsung SSD 850 + 2 x 2000GB Seagate ST2000DL003-9VT1, Graphics: ECS AMD Radeon HD 7450, Audio: Realtek ALC887, Network: Realtek RTL8111/8168/8411 OS: Debian testing, Kernel: 5.6.0-proper-rmw (x86_64), Compiler: GCC 9.3.0, File-System: ext4 Flexible IO Tester 3.18 Type: Sequential Read - Engine: IO_uring - Buffered: No - Direct: Yes - Block Size: 32KB - Disk Target: /mnt MB/s > Higher Is Better with prefetch 2 ....... 49.2 |====================================== without prefetch ...... 44.5 |================================== with prefetch 4 ....... 55.3 |========================================== new with prefetch 4 ... 46.5 |==================================== new2 with prefetch 4 .. 63.9 |================================================= new2 with prefetch 2 .. 53.7 |========================================= new2 without prefetch . 56.6 |=========================================== Flexible IO Tester 3.18 Type: Sequential Read - Engine: IO_uring - Buffered: No - Direct: Yes - Block Size: 32KB - Disk Target: /mnt IOPS > Higher Is Better with prefetch 2 ....... 1571 |====================================== without prefetch ...... 1422 |================================== with prefetch 4 ....... 1767 |========================================== new with prefetch 4 ... 1485 |==================================== new2 with prefetch 4 .. 2043 |================================================= new2 with prefetch 2 .. 1715 |========================================= new2 without prefetch . 1809 |=========================================== Flexible IO Tester 3.18 Type: Sequential Read - Engine: IO_uring - Buffered: No - Direct: Yes - Block Size: 64KB - Disk Target: /mnt MB/s > Higher Is Better with prefetch 2 ....... 53.1 |========================================== without prefetch ...... 53.9 |========================================== with prefetch 4 ....... 50.4 |======================================== new with prefetch 4 ... 50.6 |======================================== new2 with prefetch 4 .. 53.1 |========================================== new2 with prefetch 2 .. 59.1 |============================================== new2 without prefetch . 62.4 |================================================= Flexible IO Tester 3.18 Type: Sequential Read - Engine: IO_uring - Buffered: No - Direct: Yes - Block Size: 64KB - Disk Target: /mnt IOPS > Higher Is Better with prefetch 2 ....... 846 |=========================================== without prefetch ...... 859 |=========================================== with prefetch 4 ....... 802 |======================================== new with prefetch 4 ... 805 |======================================== new2 with prefetch 4 .. 845 |========================================== new2 with prefetch 2 .. 943 |=============================================== new2 without prefetch . 995 |================================================== Flexible IO Tester 3.18 Type: Sequential Write - Engine: IO_uring - Buffered: No - Direct: Yes - Block Size: 32KB - Disk Target: /mnt MB/s > Higher Is Better with prefetch 2 ....... 109 |============================================== without prefetch ...... 106 |============================================= with prefetch 4 ....... 112 |=============================================== new with prefetch 4 ... 110 |=============================================== new2 with prefetch 4 .. 118 |================================================== new2 with prefetch 2 .. 115 |================================================= new2 without prefetch . 113 |================================================ Flexible IO Tester 3.18 Type: Sequential Write - Engine: IO_uring - Buffered: No - Direct: Yes - Block Size: 32KB - Disk Target: /mnt IOPS > Higher Is Better with prefetch 2 ....... 3468 |============================================= without prefetch ...... 3381 |============================================ with prefetch 4 ....... 3571 |============================================== new with prefetch 4 ... 3509 |============================================= new2 with prefetch 4 .. 3786 |================================================= new2 with prefetch 2 .. 3657 |=============================================== new2 without prefetch . 3613 |=============================================== Flexible IO Tester 3.18 Type: Sequential Write - Engine: IO_uring - Buffered: No - Direct: Yes - Block Size: 64KB - Disk Target: /mnt MB/s > Higher Is Better with prefetch 2 ....... 121 |=============================================== without prefetch ...... 122 |=============================================== with prefetch 4 ....... 123 |================================================ new with prefetch 4 ... 123 |================================================ new2 with prefetch 4 .. 129 |================================================== new2 with prefetch 2 .. 128 |================================================== new2 without prefetch . 129 |================================================== Flexible IO Tester 3.18 Type: Sequential Write - Engine: IO_uring - Buffered: No - Direct: Yes - Block Size: 64KB - Disk Target: /mnt IOPS > Higher Is Better with prefetch 2 ....... 1929 |============================================== without prefetch ...... 1949 |============================================== with prefetch 4 ....... 1963 |=============================================== new with prefetch 4 ... 1956 |=============================================== new2 with prefetch 4 .. 2055 |================================================= new2 with prefetch 2 .. 2050 |================================================= new2 without prefetch . 2056 |================================================= FS-Mark 3.3 Test: 1000 Files, 1MB Size Files/s > Higher Is Better with prefetch 2 ....... 12.2 |=============================================== without prefetch ...... 12.2 |=============================================== with prefetch 4 ....... 12.3 |=============================================== new with prefetch 4 ... 12.4 |================================================ new2 with prefetch 4 .. 12.7 |================================================= new2 with prefetch 2 .. 12.5 |================================================ new2 without prefetch . 12.5 |================================================